[1] Grad Univ Adv Studies, Dept Stat Sci, SOKENDAI, Tokyo 1068569, Japan
[2] Natl Inst Adv Ind Sci & Technol, Tokyo 1350064, Japan
[3] China Three Gorges Univ, Dept Hubei Prov Collaborat Innovat Ctr New Energy, Yichang 443002, Peoples R China
[4] Inst Stat Math, Tokyo 1908562, Japan